Originally Posted by cn90

@Sroor9001, I know all about those "O2Pilot" mod and "50sKid" on youtube. I want to do a definitive mod and am glad I did this mod. Once you have all the parts (hoses, clamps, Tee), you can do this on 30 min. Very very easy mod.
I am now 500 miles AFTER the CCV Mod, zero oil consumption (used to be 1qt/400 miles).

@all: re CCV vs PCV. Both systems accomplish the same goals:
a. CC blow-by gets routed back to the Intake Manifold ---> combustion chamber.
b. Oil returned to the sump.

The method is slightly different on how the gas is routed back to the Intake Manifold:

1. CCV: the spring/diaphragm has a pre-set value, once the vacuum difference exceeds ___ in Hg (let's say hypothetically, it is 10 inches Hg), the diaphragm opens.
- Let's say at idle, the I.M. vacuum is -15 inches Hg, CC is - 2 inches Hg, now the vacuum difference is > pre-set value of 10 inches Hg: the diaphragm opens, allowing blow-by gas to enter I.M.
- So, depending on how much CC gas is being produced, the diaphragm opens On-Off to allow air ---> I.M.

- FAUCET ANALOGY: similar to you turn on the faucet: "On" and "Off".


2. PCV: there is always a flow, but controlled by the spring/pintle design.
Note the difference between Vacuum vs Flow Rate, they are 2 different things.
- The vacuum difference controls the position of the spring/pintle system.

- FAUCET ANALOGY: similar to you leave faucet "On" just a hair so there is some dripping, sometimes you turn the faucet up a bit to get more flow, and turn it down to a slow dripping flow.

Japanese cars such as Honda still use PCV and emission is as good as other mfg's.
Personally, I like PCV system better b/c it is easier to maintain.